EP 3449268 A1 20190306 - MAGNETIC RESONANCE RADIATION SHIELD AND SHIELDED MAIN MAGNET
Title (en)
MAGNETIC RESONANCE RADIATION SHIELD AND SHIELDED MAIN MAGNET
Title (de)
ABSCHIRMUNG FÜR MAGNETISCHE RESONANZSTRAHLUNG UND ABGESCHIRMTER HAUPTMAGNET
Title (fr)
BLINDAGE CONTRE LE RAYONNEMENT PAR RÉSONANCE MAGNÉTIQUE ET AIMANT PRINCIPAL BLINDÉ
Publication
Application
Priority
- EP 16166777 A 20160425
- EP 2017059742 W 20170425
Abstract (en)
[origin: WO2017186687A1] The present invention provides a radiation shield (204), in particular for shielding main coils (202) of a magnetic resonance imaging system (110), whereby the radiation shield (204) comprises a cavity (214) for housing at least one main coil (202), whereby the cavity (214) is formed between an inner cylindrical wall (206), an outer cylindrical wall (208), which are arranged essentially concentrically to each other, and two ring-shaped base walls (212), which interconnect the inner cylindrical wall (206) and the outer cylindrical wall (208), wherein at least one out of the inner cylindrical wall (206), the outer cylindrical wall (208), and the two ring-shaped base walls (212) is provided at least partially with an inner layer (216), which faces the cavity (214), and an outer layer (218), wherein the inner layer (216) is a layer comprising carbon fiber reinforced plastic, and the outer layer (218) comprises a metal, which is paramagnetic or diamagnetic. The present invention also provides a shielded main magnet (200) comprising at least one main coil (200) for generating a static main magnetic field in a magnetic resonance imaging system (110), and a radiation shield (204) as specified above, wherein the at least one main coil (202) is housed in a cavity (214) of the radiation shield (204).
IPC 8 full level
G01R 33/38 (2006.01); G01R 33/3815 (2006.01)
CPC (source: EP US)
G01R 33/3804 (2013.01 - EP US); G01R 33/3815 (2013.01 - US); G01R 33/3856 (2013.01 - US); G01R 33/3858 (2013.01 - US); G01R 33/3815 (2013.01 - EP)
Citation (search report)
See references of WO 2017186687A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017186687 A1 20171102; CN 109073719 A 20181221; EP 3449268 A1 20190306; EP 3449268 B1 20220629; JP 2019516447 A 20190620; JP 7010842 B2 20220210; US 11249156 B2 20220215; US 2020355769 A1 20201112
DOCDB simple family (application)
EP 2017059742 W 20170425; CN 201780025665 A 20170425; EP 17720748 A 20170425; JP 2018555673 A 20170425; US 201716095102 A 20170425